DD OS Licensed Features

Data Domain Capacity Resolution Path.

This document highlights minimum, recommended, and latest code versions for Dell Technologies Enterprise and Data Center Infrastructure products. Dell carefully evaluates and monitors code deployment data to ensure that product releases meet our stringent expectations to provide our customers with reliable products and solutions.

Summary: DDOS precheck fails because of an old certificate in the trust chain.

When applying a .lic license file to a Data Domain system, the operation fails because the system requires an XML-formatted license file.

Summary: This document details the steps to register/add a Data Domain System to Secure Connect Gateway while using connectemc.

A Data Domain (DD) system generates alert EVT-ENVIRONMENT-00029 with the message "I/O module has failed" when a PCIe I/O module (also known as a SLIC or PCI card) fails or is removed. Affected card types include SAS, NIC, NVRAM, and Fibre Channel (FC).

Clear entries by removing PostgreSQL DB and reinstalling Avamar REST API rpm package.Troubleshoot backup failure by checking software version and client properties on NMC1.

How to reset or regenerate certificates due to expiration (or misconfiguration).

Starting with DD OS 8.4, firmware-based LLDP is disabled by default on supported Intel NICs to prevent network stability issues affecting LACP, bonded interfaces, and HA communication. This change addresses multiple field-observed issues including transmit timeouts, intermittent connectivity, and heartbeat failures.

This article expands on Active Directory integration for Dell Data Domain systems by providing commonly used CLI commands for domain joins, OU placement, authentication configuration, domain verification, access management, CIFS share considerations, and advanced troubleshooting. It serves as a command-reference companion to the primary Active Directory guide and includes examples and best practices for validating and maintaining Active Directory connectivity.

The primary focus for this article is to troubleshoot an interface down, multiple interfaces down, an intermittent interface, and a bad network card. Replacing parts should be the last step in resolving interface down issues. Troubleshooting these issues first such as reviewing the switch side, may lead to the quickest resolution.

This article provides a clear, model‑by‑model breakdown of the recommended BIOS and iDRAC firmware versions for each supported DDOS release across the DD series platforms. It is designed to help you quickly confirm which firmware levels align with your system’s DDOS version, reduce compatibility issues, and ensure that your environment stays stable, secure, and fully supported. Use the tables below to find the right BIOS and iDRAC versions for your specific DD model in seconds.

This article describes how to identify and resolve memory-related errors on Dell Data Domain systems.

When using failover bonding, the standby interface has many dropped packets. This is expected since the standby interface is not active.

This article describes a specific circumstance where space reclamation may not proceed despite a lack of media database records for the files in question.

Data Domain systems initiate a graceful shutdown if multiple disk failures occur and RAID reconstruction cannot proceed. This protective measure prevents potential data loss when RAID protection reaches a critical state.

Network interfaces may go down, become intermittent, or fail to recover properly following events such as node reboots, HA failovers, link renegotiation, or other network transitions on systems equipped with Intel NICs. This issue can occur when the Intel workaround for M14MK dual-rate transceivers remains configured after the interfaces have been migrated to W4GPP 25Gb transceivers. The resulting speed mismatch can cause interface connectivity loss and intermittent network behavior.

Dell PowerProtect Data Domain remediation is available for multiple security vulnerabilities that could be exploited by malicious users to compromise the affected system.

How to determine which files were recently deleted or expired.

DDOS maintains a registry entry that records the expected total physical memory. After a DIMM replacement, memory upgrade, or memory removal, the registry may retain the previous memory configuration.

Creating a CIFS share on a storage unit that was originally written and managed through Linux BoostFS can result in ownership and permission inconsistencies. This may lead to file access failures, "Access Denied" errors, application failures, or unexpected behavior when accessing data through DD Boost. The issue can often be resolved by removing the CIFS share and reassigning ownership of the storage unit to the appropriate DD Boost user.

This article provides download links and status information for current PowerProtect Data Domain Operating System (DDOS) releases, including feature and Long‑Term Support (LTS) versions. It also outlines upgrade considerations, documentation references, and supported platforms.

This article explains how to use the Goav dd check-ssl feature to resolve SSL connectivity issues between Avamar and Data Domain.

This article describes what Session Security is on Avamar, how it works, and how to manage it.

The default Active Directory group Domain Admins is automatically assigned to Data Domain Admin Group 1 and cannot be deleted because it is a required system-defined administrative group.It can be replaced with a different Active Directory group that is more appropriate for the environment.

Is Data Domain affected by Microsoft KB5020805 (CVE-2022-37967), Microsoft KB5021130 (CVE-2022-38023), or Microsoft KB5021131 (CVE-2022-37966)

MTree replication resync can fail with error "MREPL ASSOC failed: Dest Mtree is WORM, source requests removal of WORM (5312)" when the source and destination MTrees have mismatched Retention Lock states. Resync operations are only supported when both MTrees have matching DD Retention Lock Governance/Compliance settings.

When the https or "ca trusted-ca" certificate expires on a Data Domain, it causes issues when trying to access the web UI. Generating a new certificate resolves the issue.

Migration send may fail with active critical alerts when the destination hostname specified in the migration command does not match the destination hostname defined in the replication context. Ensure the hostname used in the migration send command matches the destination system hostname configured in the replication context.

A bonded interface speed mismatch alert may occur when one member interface negotiates at a lower speed than the other member interfaces in the bond, causing the alert to remain active until all interfaces operate at the same speed.